DE. T. S. COBBOLD ON ENTOZOA IN THE DOG. 281 



M. suBDOLus, p. 395, 164 = Dimare^SMirfoZw*, Walker. Hagen ('Stett. 

 ent. Zeit,' 1860) queries this asdistinct from elegans of Perty; but 

 I believe the two species are thoroughly good. M. conicollis of 

 Walker ('Trans.- Ent. Soc. Lond.' ser. 2. vol, v. p. 188) is certainly 

 D. elegans : this latter species is very liable to vary ; for many speci- 

 mens are entirely without the markings on the wings, and in these the 

 normal dark reticulation is interrupted by pale spaces. 



M. coMPOsiTUS, p. 397, \^^ = Tomateres pardalis, F. Teste exemp. 

 typ. in collect. Banks. 



M. ASTUTUS, 398, \%T=Tomateres astutus, Walker. 



M. TRANSLATUS, p. 398, 168 = Pamm* conspurcatus, Burm. 



M. siNGULARis, p. 399, \']Q=Glenurus singularis, Westw. 



M. ciRCUiTER, p. 400, \7l = Glenunis circuiter. Walker. 



Explanation of Plate VIII. 



Fig. 1. Corydalis Baiesii, $ . 



2, Corydalis crassicornis, $ ; 2 a, portion of antenna ; 2 b, anal appen- 



dices (side view) ; 2 c, ditto (from above). 



3. CorydaUs inamabilis, ^ ; 3a, portion of antenna ; 3 b, anal appendices 



(side view) ; 3 c, ditto (from above). ^^ 



Errata. 



Page 237, line 12 from top, for " apex" read "radius." 

 Page 253, line 13 from top, dele " dimidio et ultra." 



On the Prevalence of Entozoa in the Dog, with Eemarks on their 

 Eelation to Public Health. By T. S. Cobbold, M.D., P.E.S., 

 F.L.S., Lecturer on Zoology, &c. 



[Read April 18, 1867.] 



Despite the rapid advances of heminthological science, it is not 

 yet sufficiently well understood how intimately connected are the 

 relations subsisting between man and the domestic animals in 

 reference to entozootic diseases. Whilst our very existence is 

 dependent upon a supply of certain animals, as sources of food and 

 aids to civilization, it can nevertheless be shown that under cer- 

 tain circumstances any one of the most valued of our domestic 

 quadrupeds may become an occasion of discomfort, disease, or 

 even death. The truth of this general statement is sufficiently 



